18th Annual Open House

Every year, the Carnegie Observatories opens its doors to the public. The event usually happens the 2nd Sunday in October each year. Official dates and list of activities are usually posted at the beginning of September.


Sunday, October 13, 2019
2:00 - 5:00pm

Join us for an afternoon of discovery as we explore the past, present and future of astronomy at the Carnegie Observatories.

We are expecting large numbers this year and parking is limited. Please consider taking public transit. The Observatories is a 10 minute walk from the Lake Metro Gold Line station. There is ample free parking at the Sierra Madre Villa station. Lyft/Uber might also be a good option.

  • Meet our astronomers and learn about their discoveries at the frontiers of science today
  • See amazing photos from Las Campanas, Carnegie's state-of-the-art observatory in Chile
  • Visit the Machine Shop to see how instruments are made for our telescopes in Chile
  • Bring your questions about the Universe to “Ask the Astronomer”
  • View the sun through a solar telescope
  • Tour the historic Hale Library and learn about more than a century of pioneering achievements by Carnegie scientists
  • Celebrate the 50th anniversary of the beginning of Las Campanas Observatory
  • From our archive: see a display of historical astronomical images on glass plates
  • Get the latest update on the Giant Magellan Telescope —one of the most powerful next-generation telescopes
  • Enjoy ice cream, drinks and music in the beautiful outdoor courtyard
  • Make your own constellation and other fun children’s astro activities

All are welcome, NO RSVP NECESSARY!
Register your attendance and receive a free tote bag: 
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